The Plymouth Laser brake light requires a 2057 bulb size for most applications while some specific versions utilize the 3057 bulb size. Data for the bulb specifications covers the range from 1990 through 1994.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Plymouth Laser brake light system uses two distinct bulb types across its production years. The 2057 appears in 1990-1991 and 1993-1994, while the 3057 is specified for 1992.
The 2057 is a dual-filament bulb with a BAY15d bayonet base, rated at 12V with a high-filament draw of 26.9W and a low-filament draw of 8W. It is described as a brighter variant of the 1157.
The 3057 is also a dual-filament bulb but uses a wedge-style T25 base rather than a bayonet fitting. It is rated at 12V, 27W on the high filament and 7W on the low filament.
Although the 2057 and 3057 share similar wattage ratings, their base types differ. The BAY15d bayonet base of the 2057 is not physically interchangeable with the T25 wedge base of the 3057, making the 1992 Plymouth Laser fitment distinct from all other model years in this specification set.
Both the 2057 and 3057 conform to ANSI standards applicable in the United States and Canada, indicating standardized electrical and photometric performance within those markets.
The Center High Mount Stop Light on the Plymouth Laser uses either the 1156 or the 921, depending on the model year. The 1156 is specified for 1993-1994, and the 921 is specified for 1990-1991.
The 1156 is a single-filament bulb with a BA15s bayonet base, rated at 12V and 21W. Its single-filament design means it operates at one fixed output level, unlike the dual-filament brake bulbs used elsewhere on the vehicle.
The 921 is a single-filament wedge bulb of the T15 type, rated at 12V and 16W. Its lower wattage compared to the 1156 reflects a physical and electrical difference that makes the two bulbs non-interchangeable despite serving the same lamp position across different model years.
All four bulb types in these specifications, the 2057, 3057, 1156, and 921, are ANSI-standardized and rated at 12V, consistent with standard automotive electrical systems of that era.
No Center High Mount Stop Light bulb size is listed for the 1992 Plymouth Laser within these specifications.